AFB C/S (Bone for Mycobacterium Tuberculosis)

Specimen Required

Bone

Fasting Required

Purpose of the Test

The AFB C/S test on bone tissue is typically ordered if a healthcare provider suspects that a patient may have tuberculosis that has spread beyond the lungs to other parts of the body, including the bones. Symptoms of bone tuberculosis may include joint pain, swelling, and stiffness, as well as fever and weight loss. The test is used to confirm the presence of MTB bacteria in bone tissue.

When this test is required

The AFB C/S test on bone tissue is requested when a healthcare provider suspects that a patient may have bone tuberculosis. Symptoms of bone tuberculosis may include joint pain, swelling, and stiffness, as well as fever and weight loss. The test may also be ordered if a patient has been in close contact with someone who has tuberculosis or if they have recently traveled to a country with high rates of tuberculosis.

What the Test Detects

The AFB C/S test on bone tissue is used to detect the presence of Mycobacterium tuberculosis (MTB) in a patient’s bone tissue. This is done by culturing the bone tissue sample and then testing for the presence of MTB bacteria in the culture.

Preparation for the Test

There is no specific test preparation needed for the AFB C/S test on bone tissue. However, patients should inform their healthcare provider of any medications they are taking, as some medications may interfere with the test results. It is also important to inform the healthcare provider of any allergies or medical conditions before the biopsy or surgical procedure. After the procedure, patients may need to rest and avoid certain activities for a period of time to allow for proper healing.

Sample Requirements

The AFB C/S test on bone tissue requires a sample of bone tissue, which is usually obtained through a biopsy or other surgical procedure. The sample is then sent to a laboratory where it is cultured to detect the presence of MTB bacteria.

Additional Notes

It’s important to note that the AFB C/S test on bone tissue may take several weeks to yield results, as the MTB bacteria grow very slowly in culture. Additionally, the test may produce a false negative result if the patient has a very small amount of MTB bacteria in their bone tissue or if the bacteria are not effectively cultured in the laboratory. In some cases, additional tests may be needed to confirm a diagnosis of bone tuberculosis. If you have concerns about bone tuberculosis or the AFB C/S test on bone tissue, it’s best to speak with your healthcare provider for further information.

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